3.5 inch | Article about 3.5 inch by The Free Dictionary
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3.5 inch(1) Storage drives and other devices with a 3.5" form factor. The outside case measurement of the 3.5" drive, which is commonly used in desktop computers, is approximately 4" wide (100mm). See form factor.
(2) The 3.5" microfloppy disk or the 3.5" microfloppy drive that came with all computers until the late 1990s. See floppy disk.
References in periodicals archive
FlashPath(TM) has the same physical dimensions as a 3.
Fischer International Systems Corporation announced today that Netscape(R) Communicator client software now supports smart card readers such as Fischer's Smarty Smart Card Reader/Writer, which looks like a 3.
The Smarty smart card reader, which provides immediate PC access to stored information on smart cards, looks like a 3.
Starting with drive modules, the EV-1000 supports both 3.